Dear TI:
用示波器测量I2S2 RX管脚是有波形的,仿真的时候查看I2S 2S2 Receive Left/Right Data Register寄存器里面的数据全是0;
我的代码设置如下,请帮查看一下问题出在哪里了:
/** Open the device with instance 0 */ hI2s = I2S_open(I2S_INSTANCE0, DMA_POLLED, I2S_CHAN_STEREO); if(NULL == hI2s) { status = CSL_TEST_FAILED; return (status); } else { printf ("I2S Module Instance opened successfully\n"); } hI2s2 = I2S_open(I2S_INSTANCE2, DMA_POLLED, I2S_CHAN_STEREO); if(NULL == hI2s2) { status = CSL_TEST_FAILED; return (status); } else { printf ("I2S Module Instance opened successfully\n"); } /** Set the value for the configure structure */ hwConfig.dataType = I2S_STEREO_ENABLE; hwConfig.loopBackMode = I2S_LOOPBACK_ENABLE; hwConfig.fsPol = I2S_FSPOL_LOW; hwConfig.clkPol = I2S_FALLING_EDGE; hwConfig.datadelay = I2S_DATADELAY_ONEBIT; hwConfig.datapack = I2S_DATAPACK_ENABLE; hwConfig.signext = I2S_SIGNEXT_DISABLE; hwConfig.wordLen = I2S_WORDLEN_16; hwConfig.i2sMode = I2S_MASTER; hwConfig.clkDiv = I2S_CLKDIV128; hwConfig.fsDiv = I2S_FSDIV32; hwConfig.FError = I2S_FSERROR_DISABLE; hwConfig.OuError = I2S_OUERROR_DISABLE; /** Configure hardware registers */ result = I2S_setup(hI2s, &hwConfig); if(result != CSL_SOK) { status = CSL_TEST_FAILED; return (status); } else { printf ("I2S Module Configured successfully\n"); } result = I2S_setup(hI2s2, &hwConfig); if(result != CSL_SOK) { status = CSL_TEST_FAILED; return (status); } else { printf ("I2S Module Configured successfully\n"); }